HANSEN : THE ISOPODA. 127 



2. Rocinela laticauda, n. sp. 



Fig. 2. Male (the largest specimen), natural size. 



Fig. 2a. Head of female without marsupium, seen from below, X 5. 



Fig. 2 h. Eight side of tliorax of the small immature female, scarcely X 3. 



Fig. 2 c. Left leg of second pair of the larger immature female, seen from below, 



scarcely X 4. 

 Fig. 2d. Left leg of fifth pair of the same female, seen from below, scarcely X 4. 

 Fig. 2 e. Last tlioracic segment and abdomen of the small immature female, 



scarcely X 3. 



3. Rocinela modesta, n. sp. 



Fig. 3. Head of female with marsupium, seen from below, X 6 ; the flagella 



of the antennae are broken off. 

 Fig. 8 a. Left leg of second pair of the same female, seen from below, X -'Z. 

 Fig. 3 6. Left leg of fifth pair of the same female, seen from below, X -/. 

 Fig. 3 c. Last thoracic segment and abdomen of the same female, X 3. 



4. Irona foveolata , n. sp. 



Fig. 4. Female with marsupium, X ^. 



Fig. 4 a. Leg of second pair of " puUus stadii primi," X 22. 



Fig. 46. Posterior part of abdomen of " puUus stadii primi," X 22. 



5. Cryptione tJongata, n. gen., n. sp. 



Fig. 5. Leg of first pair of the male, X 111. 

 Fig. ba. Leg of fifth pair of the male, X 111. 



PLATE IV. 



1. Cryptione elongata, n. gen., n. sp. (continued). 



Fig. 1. Female seen from above, X -V- 



Fig. 1 a. Same female seen from below, X ^ ; m. male ; mxp. maxilliped ; V, rami 

 of first pleopod on the left side (of the animal = right side of the figure) ; 

 2, rami of second pleopod on the right side ; 4', rami of fourth pleopod 

 on the left side ; 5, rami of fifth pleopod on the right side ; 5', rami of 

 fifth pleopod on the left side ; 6, uropods. The marginal hairs on the 

 marsupial plates are omitted. 



Fig. 1 h. Head of the female seen from below and both maxillipeds omitted, X 9; 

 a, antennula ; h, antenna ; c, labrum ; d, mandible ; e, maxillula ; /, max- 

 illa; g, place of attachment of the maxilliped; h, hypopharynx; /, lobes 

 or processes from the border beliind the maxillipeds. 



Fig. 1 c. Left maxilliped of the same female seen from below, X V; 1> first joint 

 with its posterior expansion ; 2, second joint; cP, dilatation on the outer 

 side of the second joint ; p, palp. 



Fig. 1 d. Left leg of first pair with its marsupial plate seen from below, X ^- ; 

 2, second joint of the leg (the first joint being fused with the thorax). 



